Context: How is Magento\Framework\View\Element\Template::getTemplateFile()
implemented and used?
Implementation
An example of result

An example of arguments
An example of the method’s arguments (for the standard «Contact Us» frontend form):


Usages
2. Magento\Customer\Block\Adminhtml\Edit\Tab\Cart::getGridParentHtml()
3. Magento\Paypal\Block\Iframe::_construct()